Screen



April 21,1942.

E. s. PERssoN SCREEN Filed June 1s, 1940 l? Eme SHGFRID PERssoN PatentedApr. 21, 1942 UET ENCE

6 Claims.

My present invention relates to new and improved screening means forwindows.

An object of my invention is to provide a screen for windows the mainfeature of said screen being that it is extremely simple and yeteifective and durable.

Another object of my invention is to provide a screen of the typeindicated which leaves the View through the window unobstructed.

A further object of the invention is to provide a screen of the typeindicated which is automatic in its function, so that the window can beclosed and opened to a certain extent without interfering with thefunction of the screen.

Still another object of my invention is to provide a screen of the typeindicated in which said automatic function is brought about Without theuse of any rollers or other means for housing the screen or part of itin closed or partly opened positions of the window.

A further object of my invention is to provide a screen of the typeindicated, which is readily mounted and dismounted, and which can alsoreadily be detached either from the window frame or from the windowsash, or from both, in order to enable the window to be opened furtherthan allowed by the screen, when in its effective position.

Still another object of my invention is to provide a screen of the typeindicated which has an inherent tendency to bend, or bulge, in theproper direction when the window is being closed.

The invention is illustrated diagrammatically in the accompanyingdrawing, in which:

Fig. 1 shows a pespective View of a screen device for a pivoted windowaccording to the invention,

Fig. 2 shows a sectional View of the top pieces of the window and screenwith the sash in closed position,

Fig. 3 shows a sectional view of the bottom pieces of the window andscreen with the sash in closed position,

Fig. 4 shows a sectional view of a slightly modified top piece with thesash in opened position,

Figs. 5 and 6 show sectional views of the side pieces of the Window andscreen above and below the pivots, respectively, with the sash in closedposition, and

Fig. 7 shows a perspective View of a member of the screen, certain partsbeing cut away for the sake of clearness.

In the embodiments of my invention shown in the drawing, the screen isapplied to a window, the sash I of which is mounted to pivot in a frame2 on a central horizontal axis, as indicated in Fig. l. This type ofwindow is, of course, selected only as an example, the use of the screenaccording to my invention being by no means limited to said window type.

The screen according to the drawing comprises parts 3, 4, 5 and 6, l, 8covering all the openings between the frame and the sash, thus leavingthe view through the window pane entirely unobstructed. Each part 3, Il,5, 6, l, 8 of the screen can form a separate member connected with oneor more of the other members by any suitable means which may or may notbe releasable. In another embodiment, the parts 3, 5 are made of onecontinuous piece of material and the parts 9, 'I, 8 of another piece ofmaterial, both pieces being arranged in a suitable way at the corners inorder to permit the necessary movements of the screen.

Each part of the screen comprises a piece of netting 9 (Fig. '7),preferably of cloth, and said piece is provided along its longitudinaledges with linings I0, II carrying suitable means for detachablysecuring the screen to the window frame 2 and the window sash I, such aspress buttons I2 and I3, respectively, or Zippers, etc.

Said pieces of netting Si are further provided with cross strips offabric I4 or any suitable ma teria] secured to the netting 9 by means ofstitchings I5, I6. In between said netting E and said strip of fabric I4a thin elastic steel strip I'I is provided having an inherent tendencyto occupy a curved shape or at least a tendency, when forced to occupy acurved position, always to bend in the same direction. This can beaccomplished, for instance, simply by making said steel strip Il curvedalso in cross-section. It then has a tendency to bend to its concaveside, when at all forced to bend.

In order further to ensure said bending, or bulging, in the desireddirection, the longitudinal edge portions of the screen, or the liningsIt, II, are secured to the window frame 2 and the window sash I in acertain way. As shown in Fig. 2, one edge portion I 6 of the screen 4 isfastened to the lower surface of the top member of the frame 2 with theedge of the screen facing outwards, i. e. to the left in Fig. 2. Theother edge portion II of said screen 4 is secured to the inner surfaceof the top piece of the sash I with the edge of said screen facingupwards.

At the bottom of the window, a s shown in Fig. 3, the edge portions Iiland I I of the screen 'I are 5 secured to the bottom pieces of the frame2 and sash I, respectively, with both edges of said screen 'I facingdownwards.

Figs. 5 and 6 show the mounting of the screens 3 and 6, respectively, atthe side members of the window above and below the pivots, respectively.As shown, the edge portions I0 and II of the screens 3 and 6 are securedto the frame 2 and sash I, respectively, with the edges of the screensfacing away from the centre of the window both above and below thepivots of the window. In Figs. 2 to 6, inclusive, the direction ofmovement of the sash is indicated by an arrow A.

In Fig. 4, corresponding to Fig. 2 but with the sash I in openedposition, a member I8 is shown secured to the sash I for the purpose ofmaking the screen 4 bend evenly thus avoiding sharp bends which would belikely to damage the screen. Similar devices can, of course, be used atevery point where bending of the screen occurs, when the window is beingopened as, for instance, at I9 in Figs. 5 and 6.

The screen can, of course, be attached to the window members in otherways than as shown and described, the general feature being that it isattached in a manner to facilitate its bending, or bulging, in theproper direction, when the window is being closed.

Instead of the steel strips l'I and its holding means I4, strips andholding means of any other suitable type and material can be used, suchas leather strips stitched to the screen material, etc. The screenmembers 3, 8, 5, 8 can be made rectangular or tapering towards thepivots of the window, and at said pivots said screen members can, ifnecessary, readily be closed by any suitable means, such as insertedscreen pieces stitched on, etc.

It should be obvious that the embodiments of my invention shown in thedrawing and described above are only for the explanation of theinvention and must not in any respect be regarded as limiting the scopethereof, since numerous modications of said embodiments are feasiblewithout departing from the spirit of my invention.

What I claim is:

1. Screen for windows having a window `frame and a window sash movablein said frame, comprising a iiexible piece of screen material, and meansfor attaching one edge of said piece to the frame and the opposite edgeto the sash, said screen being bent whereby the attached portionadjacent one of its edges lies in a plane forming an angle of at least180 with a plane in which the attached portion adjacent its other edgelies in both open and closed positions of the sash, whereby said pieceof screen will bulge in a predetermined direction when moving said edgesof the piece of screen towards each other.

2. Screen for windows having a window frame and a window sash movable insaid frame, comprising a piece of screen material, means for attachingone edge of said piece to the frame and the opposite edge to the sash,and transversely iiexible strips connected to said piece of material,said screen being bent whereby the attached portion adjacent one of itsedges lies in a plane forming an angle of at least 180 with a plane inwhich the attached portion adjacent its other edge lies in both open andclosed positions of the sash, whereby said piece of screen will bulge ina predetermined direction when moving said edges of the piece of screentowards each other.

3. Screen for windows having a window frame and a window sash movable insaid frame, comprising a piece of screen material, and means fordetachably attaching one edge of said piece of screen material to theframe and the opposite edge to the sash, said screen being bent wherebythe attached portion adjacent one of its edges lies in a plane formingan angle of at least 180 with a plane in which the attached portionadjacent its other edge lies in both open and closed positions of thesash, whereby said piece of screen will bulge in a predetermineddirection when moving said edges of the piece of screen towards eachother.

4. Screen for windows having a window frame and a window sash movable insaid frame, comprising a piece of screen material, linings at oppositelongitudinal edge portions thereof, and means for detachably attachingsaid linings to the frame and the sash, respectively, said screen beingbent whereby the attached portion adjacent one of its edges lies in aplane forming an angle of at least 180 with a plane in which theattached portion adjacent its other edge lies in both open and closedpositions of the sash, whereby said piece of screen will bulge in apredetermined direction when moving said edges of the piece of screentowards each othel.

5. Screen for windows having a window frame and a window sash movable insaid frame, comprising a piece of screen material, linings at oppositelongitudinal edge portions thereof, means for detachably attaching saidlinings to the frame and the sash, respectively, and transverse stripsof elastic material connected to said piece of screen material saidscreen being bent whereby the attached portion adjacent one of its edgeslies in a plane forming an angle of at least 180 with a plane in whichthe attached portion adjacent its other edge lies in both open andclosed positions of the sash, whereby said piece of screen will bulge ina predetermined direction when moving said edges of the piece of screentowards each other.

6. Screen for windows having a window frame and a window sash movable insaid frame, comprising a piece of screen material, stilening elasticcross strips connected therewith, linings at opposite edge portions ofsaid piece of material,

and means for detachably attaching said linings `to the frame and thesash, respectively, said ERIC SIGFRID PERSSON.

